This data set is Normalized Difference Vegetation Index, NDVI, from NASA’s MODerate-resolution Imaging Spectroradiometer (MODIS) with global coverage at 250 m^2. The study was located in Jambi Province, Indonesia. Indonesia manages various forested land utilizations, for instance natural forest and plantations. In the past, natural forest had been exploited throughout the country. Greater criticisms on forest exploitation lead to a moratorium which needs to be monitored frequently.Assessment of woody vegetation could be taken using field surveys or remote sensing. Season is probably the most intriguing factor in vegetative land cover, especially in long-term land cover changes (Lambin, 1999).

It is started from “2000-01-01” and ended to “2019-05-12” each 16 days.Therefore, the dataset includes 441 NDVI images of size 33*33 pixcel. An image

Many ecological studies, such as meta-analyses, observation networks or globally distributed networks of experiments, combine information from large numbers of locations. Such studies allow comparison of patterns across space and time and estimation of global responses.

The most strength period

## [1] 360

SSA of univariate data with L=45:

Reconstrution using the group list(1,2:3,4:5)